Christchurch

Marine Recreational Forecasts - Christchurch

Area Description:

Inshore waters from Lyttelton Harbour to the Waimakariri River mouth.

Situation:

A ridge of high pressure extends across the Tasman Sea and covers Aoteoroa/ New Zealand this weekend. High pressure continues to cover the country on Monday before a frontal band of rain affects the far south of the South Island in the evening. The front will push northwards across the South Island on Tuesday while weakening, meanwhile high pressure will cover the North Island. The front continues to weaken as it moves northwards over central New Zealand on Wednesday, while a ridge of high pressure spreads over the South Island.

Warnings:

Nil for CONWAY

Forecasts:

Saturday: Variable 5 knots. Easterly 15 knots developing this afternoon. Sea slight. Fine, then evening cloud. Northeast swell half a metre or less.

Outlook:

Outlook until midnight Tuesday: Sunday: Northeast 15 knots. A few showers developing. Northeast swell half a metre or less. Monday: Northeast 15 knots, easing to variable 5 knots late. Fine. Tuesday: Variable 5 knots, becoming northwest 10 knots later. A few showers developing.

Swell:

Marine Coastal Forecasts - Rangitata

Forecast:

Saturday : Southwest 15 knots but 25 knots offshore. Becoming variable 10 knots everywhere about midday. Sea becoming rough for a time offshore. Long period southwest swell 2 metres offshore.

Outlook:

Outlook following 3 days: Sunday: Southwest 10 knots. Moderate southerly swell. Monday: Variable 10 knots, becoming northeast 15 knots early. Moderate southerly swell easing. Tuesday: Northerly 10 knots, changing southeast 15 knots later.

Marine Coastal Forecasts - Chatham Islands

Forecast:

Saturday : Southwest 15 knots, rising to 25 knots late morning. Sea becoming rough. Long period southwest swell rising to 3 metres. Poor visibility in periods of rain, easing morning.

Outlook:

Outlook following 3 days: Sunday: Southwest 25 knots. Sea rough. Moderate southwest swell. Monday: Southwest 25 knots, easing to 15 knots late. Rough sea easing. Southwest swell becoming heavy for a time. Tuesday: Southwest 15 knots, turning northwest 15 knots early, rising to 25 knots later. Sea becoming rough. Moderate southwest swell.

Marine Coastal Forecasts - Conway

Forecast:

Saturday : Westerly 15 knots, easing to variable 10 knots in the morning. Sea slight. Long period southwest swell 2 metres offshore.

Outlook:

Outlook following 3 days: Sunday: Southeast 10 knots. Moderate southerly swell. Monday: Variable 10 knots, becoming northeast 20 knots early. Moderate southerly swell easing. Tuesday: Northerly 15 knots, becoming westerly 15 knots early. Becoming northerly 10 knots later.